Call of Duty: World at War co-op mode pits players against Nazi zombies

There's been a number of pleasant surprises that have come out of Treyarch's upcoming installment in the wildly lucrative Call of Duty franchise -- such as the inclusion of Jack Bauer, and its uncanny resemblance to the previous, well-received chapter in the series. However, last night's episode of GameTrailers TV brought another shocking (yet welcome) revelation, straight from the mouth of Treyarch studio head Mark Lamia -- Call of Duty: World at War will contain a four-player, co-op zombie (of the Nazi variety) survival mode.

Those who currently aren't busy scraping pieces of their blown mind off of the wall behind them will probably be interested in a few details Lamia mentioned -- the gameplay mode (which is unlocked upon the completion of the single player campaign) will place four players in a central structure, then assail them with wave upon wave of undead national socialists. Throughout the game, players will collect money which can be used to fortify their compound, or purchase new weapons. Also, there will be Nazi zombies.

Stoked parties can catch a glimpse of the SS Zombocalypse in Chapter Four of last night's GTTV episode, now available online.